I love Fallout and played 3, NV, and 4 avidly. It's a good adaptation. A little campy, but it feels like something made by people who know and love the source material. And with the goofy moments come some real nasty aspects of the wasteland laid bare with no question as to how nasty it is, even in the first couple episodes.

The Vaults setup was unique enough to feel new, but fit the Vault-Tec MO nicely. 4 felt generic, but I think it was mainly included for people who didn't play the games so they could get a general vibe.

The subtle nods are nice, with enough items and mechanics from the games peppered through to make it feel like part of the universe. Some are on the nose like Sugarbombs, but I've recognized generic NPC armor from the games on extras in the background.

It was also odd but fun to see game mechanics work in real time, like seeing drugs heal a grievous injury

If you want an adaptation of Fallout story it may fall short with the lighter stuff. But if you want an adaptation of a Fallout playthrough I think you're I for a good time.